Operators at their levers handling converters and ladles, steel works, Pittsburg, Pennsylvania, U.S.A.
Summary
H66574 U.S. Copyright Office.
No. 6542.
Public domain photograph of stereoscopic card, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1905
Contributors
Keystone View Company.
Location
Pittsburgh (Pa.), 40.44056, -79.99583
Source
Library of Congress
Copyright info
No known restrictions on publication.